chore(deps): update dependency docfx to v2.78.4

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Confidence
docfx	2.78.3 -> 2.78.4

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Release Notes

dotnet/docfx (docfx)

v2.78.4

Compare Source

🚀 Release Notes

🌟 New Features

• 🧩 Updated to Roslyn 4.13.0 and added .NET 10 nightly build support. (#​10577, #​10561)

🐞 Bug Fixes

• ✅ Include [Experimental] attribute support by default. (#​10566)
• ✅ Include global type metadata for all output formats. (#​10611)
• ✅ Skip non-managed assemblies to prevent runtime errors. (#​10692)
• ✅ Fix TOC grouping regression introduced by earlier refactor. (#​10700)
• ✅ Fix Bicep.js import error on the samples site. (#​10738)
• ✅ Handle IOException gracefully when file access conflicts occur. (#​10786)
• ✅ Fix PDF generation failure when navigating within the same page or hash fragment. (#​10768)
• ✅ Use textContent to correctly render header titles. (#​10790)
• ✅ Fixed nightly build CI and dependency updates. (#​10679, #​10694)
• ✅ Added event handling for AnalyzerLoadFailed to improve debugging. (#​10617)

⚡ Performance Improvements

• ⚙️ Use cached MarkdownPipeline instance to reduce re-initialization overhead. (#​10568)
• ⚙️ Reuse YamlDeserializer instance for better memory efficiency. (#​10567)
• ⚙️ Migrated test assertions to AwesomeAssertions for faster, cleaner test runs. (#​10563)
• ⚙️ Improved analyzer diagnostics and reduced noisy suggestions. (#​10578)

📘 Documentation Updates

• 📄 Minor doc fix and .slnx inclusion. (#​10610)
• 📄 Fixed config reference documentation. (#​10683)
• 📄 Corrected PlantUML class diagram link. (#​10638)
• 📄 Updated “Tabs with ***” section formatting. (#​10699)
• 📄 Fixed minor spelling errors. (#​10723)
• 📄 Updated Bicep sample to use official Highlight.js syntax. (#​10715)
• 📄 Added DeepWiki badge and improved emoji font embedding in PDF generation. (#​10680, #​10678)
• 📄 Inputs in navigation and TOC search now auto-focus when icons are clicked. (#​10754)

🙌 Contributors

Thanks to our awesome contributors for this release:
@​filzrev, @​Lombra, @​frarees, @​ettfemnio, @​Lulalaby, @​mgarstenauer, @​anthony-c-martin, @​clicktodev, @​Copilot, and everyone who helped improve this release 💙

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Configuration

📅 Schedule: Branch creation - "before 8am every weekday" in timezone Europe/London, Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• If you want to rebase/retry this PR, check this box

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[gemini-code-assist]

Summary of Changes

Hello @renovate-bot, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request updates the docfx dependency to its latest patch version, 2.78.4. This routine maintenance update incorporates a range of improvements, including new feature support for Roslyn 4.13.0 and .NET 10 nightly builds, critical bug fixes addressing various aspects of documentation generation, and performance optimizations to enhance the tool's efficiency.

Highlights

• Dependency Update: The docfx dependency has been updated from version 2.78.3 to 2.78.4.
• New Features: This update includes support for Roslyn 4.13.0 and compatibility with .NET 10 nightly builds.
• Bug Fixes: Several issues have been addressed, such as improved handling of the [Experimental] attribute, correct inclusion of global type metadata, graceful handling of non-managed assemblies, and fixes for TOC grouping regressions.
• Performance Improvements: Performance enhancements include caching MarkdownPipeline instances and reusing YamlDeserializer instances for better efficiency.

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[gemini-code-assist]

Code Review

This pull request updates the docfx dependency from version 2.78.3 to 2.78.4. This is a routine patch update that, according to the release notes, brings bug fixes and performance improvements. The change is confined to the tool configuration file and appears safe to merge.

[jskeet]

Trying in google-cloud-dotnet first with googleapis/google-cloud-dotnet#15189 - if that looks okay, then this is probably okay too.